122100010222221 has 16 divisors (see below), whose sum is σ = 185095622733120. Its totient is φ = 79506983399760.

The previous prime is 122100010222219. The next prime is 122100010222231. The reversal of 122100010222221 is 122222010001221.

It is a happy number.

122100010222221 is a `hidden beast` number, since 1 + 2 + 210 + 0 + 0 + 10 + 222 + 221 = 666.

It is not a de Polignac number, because 122100010222221 - 2¹ = 122100010222219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122100010222194 and 122100010222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100010222231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52583982570 + ... + 52583984891.

It is an arithmetic number, because the mean of its divisors is an integer number (11568476420820).

Almost surely, 2^{122100010222221} is an apocalyptic number.

It is an amenable number.

122100010222221 is a deficient number, since it is larger than the sum of its proper divisors (62995612510899).

122100010222221 is a wasteful number, since it uses less digits than its factorization.

122100010222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105167967513 (or 105167967507 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122100010222221 its reverse (122222010001221), we get a palindrome (244322020223442).

The spelling of 122100010222221 in words is "one hundred twenty-two trillion, one hundred billion, ten million, two hundred twenty-two thousand, two hundred twenty-one".